Tactician

Knowing is half the battle. Tacticians take that half seriously and hone their skills observing and understanding the enemy while leading and coordinating their allies in battle.

Combat Formation

Starting at 3rd level, you learn to coordinate groups of combatants on the battlefield. As a bonus action, you can grant yourself, and all allies adjacent to you, a bonus to AC or damage rolls (your choice) equal to the number of allies adjacent to you until the start of your next turn. No matter how many allies are within 5 ft. of you, the total bonus can't exceed your Intelligence modifier. Allies must remain adjacent to you, or another ally that's adjacent to you, in order to benefit from the bonus.

Know Thy Enemy

When trying to recall information on a creature or identify its strengths and weaknesses, you're considered proficient in all Intelligence-based checks. If you're already proficient in the relevant skill, you add your proficiency bonus again to that check. 

Drill Instructor

By 7th level, you're an experienced teacher of war, capable of easily passing on skills to soldiers at your command. Allies who can see and hear you gain temporary proficiency with an instrument, tool set, saving throw, skill, or weapon you're proficient with after you've instructed them. The duration of the temporary proficiency depends on the length of the instruction. 

Once you use this feature, you must finish a short or long rest before you can use it again.

Instruction Time	Profiency DUration
1 Minute	10 Minutes
10 Minutes	1 Hour

Observant Dodge

At 10th level, your keen eye provides better insight into where your foe will strike next. You can Dodge as your reaction a number of times equal to your Intelligence modifier, after which you must finish a short or long rest before using this feature again. 

Anticipation

At 15th level, your tactical mastery of the battlefield allows you to take intricate actions swiftly in response to enemy movement. You can Action Surge as part of your reaction--taking any additional action of your choice and using any unused movement from your most recent turn.

Expose Vulnerability

By 18th level, your tactical acumen lets you easily identify an enemy weakness. As a bonus action, you can Investigate an enemy you can see within 30 ft. The DC of this check is equal to the enemy's Armor Class + their proficiency modifier. If successful, the enemy's Armor Class is reduced equal to your Intelligence modifier for attacks made by allies that can see and hear you when the check was made. This penalty lasts until the enemy is defeated, or the enemy somehow changes its defenses (i.e., a creature changing form or a soldier picking up a shield).